These are a few images rendered with our program called
"tcp renderer". It was written for fun, but we used it
as basis for a scientific paper we had to write in
school.. Anyway, it renders julia and mandelbrot sets
in quaternion space, using a 4D camera that can be
placed and rotated freely in four (room) dimensions.
It is also capable of rendering 2D subsets, as shown
by the 2D Julia image to the right.